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<li role="presentation" class="active"><a href="#first" aria-controls="home" role="tab" data-toggle="tab">第一项</a></li>
<li role="presentation"><a href="#second" aria-controls="profile" role="tab" data-toggle="tab">第二项</a></li>
<li role="presentation"><a href="#third" aria-controls="messages" role="tab" data-toggle="tab">第三项</a></li>
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<div role="tabpanel" class="tab-pane active" id="first">哈哈哈哈哈哈</div>
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<p>互联网是做什么的？</p>
<p>互联网技能教育，免费的哦</p>
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<div role="tabpanel" class="tab-pane" id="third">哼哼哼哼哼哼哼哼哼</div>
<div role="tabpanel" class="tab-pane" id="forth">嘿嘿嘿嘿嘿嘿嘿嘿嘿</div>
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